To save her brother who is badly ill, she accepted a deal to have a one night stand with a stranger. Unexpectedly, she got pregnant and was forced to marry the arranged husband. Yet, it was a transaction in the first beginning, neither of them would know they may be entangled with each other one day. She gradually fell in love with her husband but never expected to get a divorce paper in return on the day of delivering the child. It was on that day, she gave their relationship up and left decisively. But somehow afterwards, the man chased after her ex-wife, "I regret a lot for what I have done for you. My heart still beats for you."